Electrospray ionization mass spectrometric investigations of the complexation behavior of macrocyclic thiacrown ethers with bivalent transitional metals (Cu, Co, Ni and Zn)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F12%3A00383784" target="_blank" >RIV/61388963:_____/12:00383784 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/rcm.6352" target="_blank" >http://dx.doi.org/10.1002/rcm.6352</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/rcm.6352" target="_blank" >10.1002/rcm.6352</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrospray ionization mass spectrometric investigations of the complexation behavior of macrocyclic thiacrown ethers with bivalent transitional metals (Cu, Co, Ni and Zn)

Popis výsledku v původním jazyce

RATIONALE Heavy metals are both a problem for the environment and an important resource for industry. Their selective extraction by means of organic ligands therefore is an attractive topic. The coordination of three thiacrown ethers to late 3d-metal ions was investigated by a combination of electrospray ionization mass spectrometry (ESI-MS) and electron paramagnetic resonance (EPR). METHODS The mass spectrometric experiments were carried out in an ion trap mass spectrometer with an ESI source. Absolutebinding constants were estimated by comparison with data for 18-crown-6/Na+. EPR spectroscopy was used as a complementary method for investigating the CuI/CuII redox couple. RESULTS The study found that thiacrown ethers preferentially bind traces of copper even at an excess of other metal ions (CoII, NiII, and ZnII). The absolute association constants of the CuI complexes were about 108?M1, and about two orders of magnitude lower for the other 3d-metal cations. The EPR spectra demonstra

Název v anglickém jazyce

Electrospray ionization mass spectrometric investigations of the complexation behavior of macrocyclic thiacrown ethers with bivalent transitional metals (Cu, Co, Ni and Zn)

Popis výsledku anglicky

RATIONALE Heavy metals are both a problem for the environment and an important resource for industry. Their selective extraction by means of organic ligands therefore is an attractive topic. The coordination of three thiacrown ethers to late 3d-metal ions was investigated by a combination of electrospray ionization mass spectrometry (ESI-MS) and electron paramagnetic resonance (EPR). METHODS The mass spectrometric experiments were carried out in an ion trap mass spectrometer with an ESI source. Absolutebinding constants were estimated by comparison with data for 18-crown-6/Na+. EPR spectroscopy was used as a complementary method for investigating the CuI/CuII redox couple. RESULTS The study found that thiacrown ethers preferentially bind traces of copper even at an excess of other metal ions (CoII, NiII, and ZnII). The absolute association constants of the CuI complexes were about 108?M1, and about two orders of magnitude lower for the other 3d-metal cations. The EPR spectra demonstra

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA400550704" target="_blank" >IAA400550704: Fullerenové kontejnery. Návrh, syntéza, vlastnosti a možné aplikace.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Rapid Communications in Mass Spectrometry

ISSN

0951-4198

e-ISSN

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Svazek periodika

26

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

2287-2294

Kód UT WoS článku

000308563000011

EID výsledku v databázi Scopus

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